Answer:
The answer is "[tex]\$ 137,000[/tex]"
Explanation:
Please find the complete question in the attached file.
Commercial sector contribution margin
[tex]=\$137,000[/tex]
Margin per unit of contribution = sales price – Unit cost variables
Margin of Contributions = Revenue Sales - Fixed expenses
Aerospace industry variable costs
[tex]=\$280,000- \$143,000 =\$ 137,000[/tex]